399796702344 has 256 divisors, whose sum is σ = 1210077792000. Its totient is φ = 121571573760.

The previous prime is 399796702339. The next prime is 399796702363. The reversal of 399796702344 is 443207697993.

399796702344 is a `hidden beast` number, since 399 + 7 + 9 + 6 + 7 + 0 + 234 + 4 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 94534822 + ... + 94539050.

It is an arithmetic number, because the mean of its divisors is an integer number (4726866375).

Almost surely, 2^399796702344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 399796702344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (605038896000).

399796702344 is an abundant number, since it is smaller than the sum of its proper divisors (810281089656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

399796702344 is a wasteful number, since it uses less digits than its factorization.

399796702344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4645 (or 4635 counting only the distinct ones).

The product of its (nonzero) digits is 61725888, while the sum is 63.

The spelling of 399796702344 in words is "three hundred ninety-nine billion, seven hundred ninety-six million, seven hundred two thousand, three hundred forty-four".